作为新型飞机的秘密训练基地，这是一个非常理想的地方；因为它地处边陲，人们不容易了解其中的活动。
As a secret training base for a revolutionary new plane, it was an excellent site, its remoteness effectively masking its activity.
作为新型飞机的秘密训练基地，这是一个非常理想的地方；因为它地处边陲，人们不容易了解其中的活动。
As a secret training base for a revolutionary new plane, it was an excellent site, its remoteness effectively masking its activity.
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